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| Mirrors > Home > MPE Home > Th. List > vsnid | Structured version Visualization version GIF version | ||
| Description: A setvar variable is a member of its singleton. (Contributed by David A. Wheeler, 8-Dec-2018.) |
| Ref | Expression |
|---|---|
| vsnid | ⊢ 𝑥 ∈ {𝑥} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 3437 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | 1 | snid 4597 | 1 ⊢ 𝑥 ∈ {𝑥} |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2121 {csn 4558 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-tru 1551 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-v 3435 df-sn 4559 |
| This theorem is referenced by: exsnrex 4615 rext 5390 unipw 5392 xpdifid 6123 opabiota 6913 fnressn 7105 fressnfv 7107 snnex 7705 frrlem12 8241 frrlem14 8243 mapsnd 8828 findcard2d 9095 ac6sfi 9188 iunfi 9247 elirrvOLDOLD 9508 kmlem2 10069 fin1a2lem10 10326 hsmexlem4 10346 iunfo 10456 modfsummodslem1 15750 lcmfunsnlem2lem1 16602 coprmprod 16625 coprmproddvdslem 16626 c0snmgmhm 20437 lbsextlem4 21158 frlmlbs 21776 coe1fzgsumdlem 22293 evl1gsumdlem 22346 maducoeval2 22627 dishaus 23369 dis2ndc 23447 dislly 23484 dissnlocfin 23516 comppfsc 23519 txdis 23619 txdis1cn 23622 txkgen 23639 isufil2 23895 alexsubALTlem4 24037 tmdgsum 24082 dscopn 24560 ovolfiniun 25490 volfiniun 25536 jensen 26974 uvtx01vtx 29488 cplgr1vlem 29520 unidifsnel 32627 gsumpart 33148 dflring3 33592 mplidomlem 33723 vieta 33776 extdg1id 33862 irngss 33883 esum2dlem 34288 bnj1498 35258 funen1cnv 35284 fineqvnttrclselem2 35318 wevgblacfn 35352 cvmlift2lem1 35545 funpartlem 36185 ttcid 36735 topdifinffinlem 37724 fvineqsneq 37789 pibt2 37794 finixpnum 37987 mbfresfi 38048 pclfinN 40407 sn-iotalem 42723 mzpcompact2lem 43215 dvmptfprod 46402 fourierdlem48 46611 sge0sup 46848 funressnvmo 47522 dfclnbgr6 48361 dfsclnbgr6 48363 termco 49985 termcarweu 50032 diag1f1o 50038 diag2f1o 50041 |
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